Home / 11,310.89-16,966.34-3,519.70

Finding the Fourth Proportional to 11,310.89, 16,966.34 and 3,519.70

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Solution

The fourth proportional to 11,310.89, 16,966.34 and 3,519.70 is: 5,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.89 : 16,966.34 = 3,519.70 : x
  2. Step 2: Convert to fraction form
    11,310.89/16,966.34 = 3,519.70/x
  3. Step 3: Cross multiply
    11,310.89x = 16,966.34 × 3,519.70
  4. Step 4: Simplify right side
    11,310.89x = 59,716,465.62
  5. Step 5: Solve for x
    x = 59,716,465.62/11,310.89
  6. Step 6: Final answer
    x = 5,279.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.